<?php
$servername = "localhost";
$username = "root";
$password = "";
$dbname = "myDBPDO";

try {
    $conn = new PDO("mysql:host=$servername;dbname=$dbname", $username, $password);
    // 设置 PDO 错误模式为异常
    $conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
    
    // 预处理 SQL 并绑定参数
    $stmt = $conn->prepare("INSERT INTO MyGuests (firstname, lastname, email)
    VALUES (firstname, lastname, email)");
    $stmt->bindParam('firstname', $firstname);
    $stmt->bindParam('lastname', $lastname);
    $stmt->bindParam('email', $email);
    
    // 插入行
    $firstname = "John";
    $lastname = "Doe";
    $email = "john@example.com";
    $stmt->execute();
    
    // 插入其他行
    $firstname = "Mary";
    $lastname = "Moe";
    $email = "mary@example.com";
    $stmt->execute();
    
    // 插入其他行
    $firstname = "Julie";
    $lastname = "Dooley";
    $email = "julie@example.com";
    $stmt->execute();
    
    echo "新记录插入成功";
}
catch(PDOException $e)
{
    echo "Error: " . $e->getMessage();
}
$conn = null;
?>